*{
    padding: 0;
    margin: 0;
}
.main{
    margin: 0 auto;
    width: 1100px;
    height: 1000px;
}
.top{
    margin: 0 auto;
    width: 100%;
    height: 60px;
    border-radius: 5px;
    background: linear-gradient(to top, rgba(255,77,77,1) 0%, rgba(153,0,0,1) 100%);
}
.top_ul,.top_ul2{
    position: absolute;
    width: 500px;
    height: 50px;
    top: -25px;
    margin: 35px 0 0 0;
}
.top_ul li,.top_ul2 li{
    position: relative;
    width: 100px;
    height: 50px;
    list-style: none;
    float: left;
    margin: 0 10px;
    color: white;
    border-radius: 10px 10px 0 0;
    text-align: center;
    line-height: 50px;
    font-size: 15px;
    font-weight: bold;
    transition: 0.3s ease-in-out;
}
.top_ul li img{
    width: 45px;
}
.top_ul li:hover{
    background-color: white;
    color: black;
    transition: 0.3s ease-in-out;
}
.top_ul2{
    right: 250px;
    top: -30px
}
.top_ul2 li{
    width: unset;
    float: right;
    color: white;
    line-height: 50px;
    font-size: 10px;
    margin: 0 3px;
    font-weight: normal;
}
.top_ul2 li a{
    color: white;
    text-decoration: unset;
}
.top_ul2 li a:hover{
    text-decoration: underline;
}
.list{
    position: relative;
    background-color: rebeccapurple;
    width: 300px;
    height: 300px;
    top: 10px;
    border: 1px solid gray;
    border-radius: 5px;
}
.list ul{
    position: absolute;
    list-style: none;
}
.list ul li{
    width: 300px;
    height: 50px;
    line-height: 50px;
    background: linear-gradient(to top, rgba(222,222,222,1) 0%, rgba(255,255,255,1) 100%);
}
.list ul li a{
    position: relative;
    left: 25px;
    color: black;
    text-decoration: unset;
}
.adv {
    position: absolute;
    width: 785px;
    height: 300px;
    top: 70px;
    left: 525px;
    border-radius: 10px;
    overflow: hidden;
}